In the fourth instalment of this ongoing case study, Dan Lee maps the locations and contributions of the semi-scheduled units that contributed to the +861MW Aggregate Raw Off-Target that occurred on the afternoon of October 27th 2022.
The long weekend provided an opportunity to review 10 years of electricity bills at home to look at net usage patterns and net solar injections from our home rooftop solar system. What have we found, at this point?
It’s Easter Sunday (9th April 2023) and it looks like NSW minimum demand has fallen further from the prior record set 6 months ago.
On 6th April 2023 the AEMO published this preliminary report into the brief market suspension that occurred in NSW on 17th March 2023.
From 16th March 2023 the infamous ‘x5 constraint’ has been split into two. We quickly showed previously that the design of the Left Hand Side (LHS) does not vary. In today’s article, valued guest author Allan O’Neil takes a look at what is different.
A short note to mark the Reliability Panel’s annual review of market performance which covers system reliability, security, and safety over the 2021-22 FY – which includes the June 2022 market suspension.
AFR and the Australian (and elsewhere?) there are reports of the co-owner of Callide C (with CS Energy) being placed in voluntary administration.
Given the significance of the event (Reserve Trader almost triggered on Thursday 16th March – 34 days till the closure of Liddell Unit 4) we’re investing some time in exploring more detail of the event. This is Part 1.
A quick record of the start of volatility on Sunday evening 19th March 2023.
A just-announced AEMO market notice has declared a temporary suspension of the NSW market.
Looks like a new all-time record for Operational Demand in the QLD region early this evening, Friday 17th March 2023.
Following last night’s market volatility, QLD’s total demand is currently forecast to go beyond its highest recorded point.
Looks like we’ve (sort of) dodged the Reserve Trader bullet on Thursday evening 16th March 2023 … but still poses plenty of questions.
Second post for this afternoon/evening following AEMO announcement to commence RERT Negotiations for this evening in NSW.
Some late hot weather (in Autumn 2023) is providing for some activity in the market
A short article to note the AEMO’s release of the 2023 GSOO today and the subsequent media coverage.
From 08:00 (NEM time) this morning, the old ‘X5 constraint’ (i.e. formerly formally known as ‘N^^N_NIL_3’) has been split into two (i.e. addressing separately risk of tripping of either/both Bendigo to Kerang 220kV line and Bendigo to Shepparton 220kV line). Here’s a first quick look…
In Part 3 of this Case Study, we look at the source of the Dispatch Interval Availability forecasts for these units at 17:05 on 27th October 2022 (i.e. Self-Forecast or something else, incl AWEFS/ASEFS).
In Part 2 of this Case Study, we look at those 15 x Semi-Scheduled units highlighted with large deviations (mostly under-performance) at 17:05 on 27th October 2022 in order to understand more.
Dan Lee explains why capacity factor could be becoming an increasingly less useful measure for comparing how different solar farms are performing and begins an exploration into some of the factors in play when trying to conduct more comprehensive analysis into generator performance.